<h2>Full example</h2>
<pre><code>// Source: https://github.com/microsoft/AL/blob/master/samples/ControlAddIn/al/Page/CustomerCardAddIn.al

pageextension 50300 CustomerCardAddIn extends "Customer Card"
{
	layout
	{
		addafter(Blocked)
		{
			usercontrol(ControlName; TestAddIn)
			{
				ApplicationArea = All;

				trigger Callback(i : integer; s: text; d : decimal; c : char)
				begin
					Message('Got from js: %1, %2, %3, %4', i, s, d, c);
				end;
			}
		}
	}

	actions
	{
		addafter(Approve)
		{
			action(CallJavaScript)
			{
				ApplicationArea = All;

				trigger OnAction();
				begin
					CurrPage.ControlName.CallJavaScript(5, 'text', 6.3, 'c');
				end;
			}

			action(CallViaCodeunit)
			{
				ApplicationArea = All;

				trigger OnAction();
				var c : Codeunit AddInHelpers;
				begin
					c.CallJavaScript(CurrPage.ControlName);
				end;
			}

			action(CallStaleControlAddIn)
			{
				ApplicationArea = All;

				trigger OnAction();
				var c : Codeunit AddInHelpersSingleton;
				begin
					c.CallStaleAddInMethod();
					Message('Probably nothing should happen...');
				end;
			}
		}
	}
}</code></pre>
